scsi: fc: remove redundant check of an unsigned long being less than zero

Colin Ian King · martinkpetersen · commit eea422709fd8 · 2017-04-18T21:52:09.000-04:00
The check for an unsigned long being less than zero is always false so
it is a redundant check and can be removed.

Detected by static analysis with by PVS-Studio

Signed-off-by: Colin Ian King &lt;colin.king@canonical.com&gt;
Reviewed-by: Tyrel Datwyler &lt;tyreld@linux.vnet.ibm.com&gt;
Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
@@ -850,7 +850,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val)
 	char *cp;
 
 	*val = simple_strtoul(buf, &cp, 0);
-	if ((*cp && (*cp != '\n')) || (*val < 0))
+	if (*cp && (*cp != '\n'))
 		return -EINVAL;
 	/*
 	 * Check for overflow; dev_loss_tmo is u32
